Grain-binder



(No Model.) K

' P. VHMSQN.-

GRAIN BINDER'.

' 2 vSmeets-Sheet; Y2.

Patvemedslvlarj.- 27,1888..

neues.'- om Q UNITED STATES PATENT Carien. i

PAUL HANsoN, on sT. PAUL, MINNESOTA.

` GRAIN-BINDER.

SPECIFICATION forming part of Letters Patent N o. 379,953, dated March27, 1888.

Application filed July 14, 1886. Serial No. 207.978. (No model.)

To all whom it may concern.:

Beit known that I, PAUL HANsoN, a citizen of the United States, residingat St. Paul, in the county of Ramsey and State of Minneseta, vhave,invented certain new and useful Improvements in Grain-Binders, which areset forth in the following specification, reference being had to theaccompanying drawings, forming a part thereof. Y

The purpose of this invention is to provide improved mechanism foractuating and releasing the compressor of a grain-binder which shall bemore simple in construction and less liable to derangement than is nowin common use.

in the drawings, Figure l is a rear elevation of such parts of abinder-frame and oper- A A A A Aare portions of the hinder-frame.

B is the needle or band-carrying arm;

C is the compressor.

D is a lever which is pivoted on the needle rocksliaft in front of theneedle.

E is a link which connects one end of said lever to the compressor.

F is a spring coiled around said link and stopped at one end by anadjustable shoulder on said link and at the other end by the end of thelever D. This spring is hereinafter called the compressorspringbecauserthe compressor is by it sustained against the bundle, and itstension determines the degree of pressure exerted by the compressor.

G is a dog pivoted on a lug of the binderframe, and G4 is atorsion-spring fixed at one end to the frame at some little distanceforward of the pivot of the said dog, and by its rear end engaging thedog, as by entering the hole g in the latter. rI his spring tends toresist movement of the-dog in either direction on its pivot and torestore it to the position shown in Fig. 1. y

The compressor is connected to the needle eccentrically as to the heelB" of the needle, as is customary.

The link E is connected to the lever D by passing through it near theend (the aperture d, which is provided for that purpose, being elongatedto allow the movement between the said parts,which will hereinafterappear necessary) and being provided with the stop-nut E outside saidlever. 6o

The lever D at the end opposite that at which the link E is connectedhas on the front side the abutment D', which may be provided with theanti-friction roll DO, as shown, and said roll bears against the lowerend of the dog G, (the periphery g2 of said end beingA eccentric to thepivot of the dog, for a purpose hereinafter explained.) rlhe dog G hasthree branches, G, G2, and G3. The branch Gr2 projects downward andforms a stop against 7o which the roll D10 engages to prevent the leverD rocking on the pivot except at the proper time. rIhe branch G projectsupward and outward and bears against the hub of the lever D and preventsthe dog rocking on the pivot too farin that direction, and thebraneh G3projects in ward and has the abutment G3o jutting slightly rearward.

lhe needle has the tail B2 projecting from its back edge and terminatingin the lip B2, 8o which extends forward of the verticalplane of theneedle, so that it collides with the abutment G of the dog G when theneedle rises to encircle the bundle.

On the lever D, a short distance outward outer end of the compressor isupheld by the v spring F, whose lower end rests on the outer end of thelever D and whose upper end bearsagainst the adjustable shoulder or nutE2 of the link E, which is connected to the compressor, and that in themovementdescribed roo the spring rocks on the end of the lever D, whileits upper end is carried inward with the link E and the compressor; andthat any re, slstance which the compressor encounters from the bundlewill tend to compress the springF and cause the link E to protrude itslower end farther beyond the end of the lever D. Just before the needlereaches the limit of its upward stroke the lip B70 of its tail Bzcollides with the cnil G3" ot' the branch G3 of the dog G and rocks saiddog over its pivot to the position shown in dotted line in Fig. l. Theeceentricity of the edge gt oi' the branch Gl to the pivot of the dogcauses said branch bearing said edge g2 against the roll D to force thatend ofthe lever D downward while the dog is rocked, as described, and byso doing to force the outer end of said lever upward and compressthespriug F. This action occursjust at the end ot' the upstroke of theneedle, and thereby the bundle receives an extra compression just at thelast instant, and the band is th c reby iliade tighter than it wouldotherwise be. The tail B2, however, having rocked the dog G a shortdistance, slips over the end of it (the difference in the centers ol'the needle and the dog and the shorter radius of the latter permittingsuch result) and stands above it, acting in this movement as aratchet-tooth engaging the dog as a pawl; but the spring G", as soon asthe dog is t'ree l'rom the tail B2, rocks thc dog back toward itsinitial position, and even in the absence or" the spring Gr4 thepressure ot' the spring F on thel outer end of the lever D, causingpressure of the roller Dm, on the eccentric end ot' the branch G2 ot'the dog G, would cause the same result, so that the needle has to recedesome little distancey before its tail B2 comes again into contact withthe end ot the dog. (This is the interval in which the knotter operatesto form the knot.) Vhen the tail strikes the dog, it rocks it in theopposite direction from its former movement and earries the end g2 ofthebranch GIl oli"I the roll D10, and thereby deprives the lever D of anystop to prevent its swinging on its bearing on the needle rockshat`t,and the greater weight of the arm of said lever, to which there is alsoadded the weight ot' the spring F, link E, and compressor C, and thepressure and partially the weight of the bundle which rests against thecompressor, causes the lever to swing on its pivot and let thecompressor drop out of the way of the bundle, which at this time isabout to be ejected from the machine. As the needle further recedes, itsback edge collides with compressor would fall, and I do not claim suchconstruction; butin such devices as heretofore constructed, the leverand compressor being detaehably and not being permanently connected, thelever could not be utilized for the purpose of communicating movement tothe compressor, but served only the purpose of locking and unlocking it,whereas in the construction above set forth it is possible to actuatethe compressorV directly by means of the lever, which is connectedpermanently to it by the link E.

1. In combination with the needle and the compressor pivoted thereto, alever pivoted about the needle-axis, a link connecting it permanently tothe compressor, adog pivoted on the frame and engaging and forming astop for the lever, and suitable projection on the needle, whereby, whenreceding, it engages the dog and disengages it from the lever to permitthc compressor to tall, substantially as set forth.

2. In combination'with the needle and the compressor pivoted thereto, alever pivoted on the frame and con nected to and upholding thecompressor, a dog pivoted on the frame and forming a stop for the leverto cause it to uphold the compressor, the needle having a projectionwhich engages the dog when the needle recedes and causes it to releasethe lever and allow the compressor to fall, and the lever having `anabutment which the needle at the latter part ot'its recession engagesand thereby restores the lever and compressor to their initial position,substantially as set forth.

3. In combination with the needle, the com presser pivoted thereto andactuated thereby, the lever D, pivoted about the needle-axis, the dog G,constituting a movable stop to arrest said lever, the link E,permanently connecting said lever to thc compressor, andthe spring F,reacting between the lever and the compressor' lengthwise of said linkto force the lever and compressor apart, substantially as set forth.

4. In combination with the needle and the compressor connectedtherewith, a lever pivoted on the needle rock-shaft, a spring betweenthe compressor and the outer end of the lever, tending` to force themapart, a dog pivoted on the frame and having the end g eccentric to itspivot and forming a stop for the inner end of the lever, and the needlehaving the tail B2, engaging and rocking said dog asit advances, wherebythe eccentric edge g2 causes thelever D to swing toward the compressorand compress the spring between them, substantially as set torth.

In testimony whereof I' have hereunto set my hand, this 8th day of July,A. D. 1886, in the presence of two witnesses, at St. Paul, Minnesota.

PAUL I-IANSON.

Vitnesses:

J. H. RANDALL, A. J. GALBRAITH.

IIO

